CHANGE THE SUFFIX

However the following shell script
can be used to do the required
opperation:

***

Change all *.abc file to *.def the
following shell script would work:

#!/bin/sh
for f in *.abc; do
mv $f `basename $f .abc`.def
done

How it works:

for f in *.abc; do

Set up a look for all files ending
in .abc, and each time around setup
$f as the filename

mv $f `basename $f.abc`.def

`basename $f .abc` takes the filename
in $f and removes any trailing occurences
of .abc, we then append .def to the result
and the resulting command becomes
"mv file.abc file.def"

done

Ends the "for" loop above.

Under "csh" or "tcsh" a similar thing could be done with:

foreach f in ( *.abc )
mv $f `basename $f .abc`.def
end

This tip generously supported by: pwain@liberate.com

NOTE: All tips provided are USE AT YOUR OWN RISK. Tips are submitted
by various unix admins around the globe. UGU suggest you read and
test each tip in a non-volitile environment before placing into
production.